Copper prices traded lower in New York following London gains, retreating slightly from near-record territory as macroeconomic pressures clipped bullish momentum. Comex December copper dropped 1.3% to $6.6020 per pound ($14,555 per tonne) after reaching $6.7420 intraday. The pause follows record peaks across both major exchanges, where London Metal Exchange three-month copper touched $14,525 per tonne—just shy of its all-time January record.
U.S. Tariff Front-Running Drains Global Inventories
The structural driver underlying the market’s tight physical condition remains the aggressive redirection of refined copper into the United States.
Traders are actively front-running anticipated U.S. copper tariffs. The duties start at 15% in January 2027 and rise to 30% in 2028. This trade arbitrage has driven roughly 688,000 tonnes into Comex warehouses, nearly tripling LME stock levels. Consequently, liquidity is draining from global exchanges, shifting analyst projections from a surplus toward a market deficit.
Chilean Production Plunges to 2011 Lows
Physical supply constraints have been aggravated by severe weather disruptions in Chile, the world’s primary copper producer. Chilean July copper production slumped 9.4% year-on-year to 403,424 tonnes, marking the weakest July output since 2011. Severe El Niño storms forced major mines, including Antofagasta’s Los Pelambres and Lundin Mining’s Caserones, to halt operations and cut full-year production guidance.
The mining drop triggered a 1.5% year-on-year contraction in Chile’s July Imacec economic activity index, underlining the macro impact of supply disruptions. While major mining equities pulled back on Tuesday, top producers have posted double-digit gains over the past month as investors price in sustained deficit conditions.
Market Impact
○ Impacted Metals: Refined Copper Cathode, Copper Wire Rod, Concentrate
○ Direction: Volatile
○ Time Horizon: 12–18 months
○ Affected Industries: Energy Infrastructure, Electric Vehicles, Electronics, Mining, Smelting, Utilities
○ Related Price Reports: Copper Weekly Price Report
○ Watch Item: Monitor Chinese regulatory decisions on the Anglo American-Teck Resources merger and potential antitrust conditions.
SuperMetalPrice Commentary:
The copper market is caught in a tight vice between real physical supply disruptions in South America and aggressive paper-market tariff arbitrage in North America. While macro headwinds like dollar strength create short-term price caps, the massive accumulation of inventory in U.S. vaults leaves the rest of the world extremely vulnerable to localized squeeze conditions. Any further supply shock will immediately test new record price ceilings.
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